Stove



l 1,713,428 May 14, 1929- J. T. F,|Tz GERALD sTov Filed Sept. 4, 1928 5 Sheets-Sheet l 4&4

'Jnventor FJ'ilZeraZd f7 WMM wwa' May 14, 1929.

J. T. FlTZ GERALD s'rovl Filed Sept..4, 1928 3 Sheets-Sheet 2 WMM fvg-mt.'

Patented May 14, 1929.

JAMES T. FITZ GERALD, 0F SOUTH PITTSBURG, TENNESSEE.

STOVE.

Application med september 4, 192e.Y serial No'. 308,865. f

The present invention relates to improvements in stoves, and has for an object to provide an improved heating and cooking stove inV which an economy in heating is effected and the products of combustion more completely burned.

Another object of the invention is to provide an improved conjoint damper control, whereby the oven heat is regulated and the fire-box draft controlledto effect economies in the operation of the stove.

With the foregoing and other objects in view, the invention will be more fully described hereinafter, and will be more particularly pointed out in the claims appended hereto.

In the drawings, wherein like symbols refer to like or corresponding` parts throughout the several views,

Figure 1 is a top plan view, with parts, broken away, showing an improved stove constructed according to the present invention.

' Figure 2 is a front elevationof the same, with parts broken away.

Figure 3 is a diagrammatic View showing the damper arrangement in a subsequent po-VV sition to that shown in Figure 2.

Figure 4 is a plan view of the stove with the top removed.

Figure 5 is a transverse section taken on the line 5-v5 in Figure 2.

Figure 6 is a perspective view, withk parts brokenawa-y, showing the perforated top construction.

Figure 7 is a fragmentary vertical section through one of the stove doors. v g

Figure 8 is a front perspective view, with parts broken away, of a canopy top forming a modified optional equipment.

Figure 9 is a rear perspective view of the same, and Y Figure 10 Vis a cross section through the same.

Referring more particularly to the drawings 8 designates the stove casing, which, in

' this instance is preferably provided with the insulating lining 9. At 10 is shown the oven door, at 11 the ire door and atY 12'the ash door. Atransverse partition 13 adjoining the fire-box and ash pit is tprovided with an opening 14 just below the re-box, and provides in one end of the stove a down-take draft passage 15. i v

This passage communicates `atrits upper end with a chamber 16 located between the ren receive air from the space above the stove through thek perforated cover slabs. kThese slabs comprise upper perforated lates 22 and lower insulating plates 23. he insulating plates are also perforated, the perforations being in staggered relation with respect to the perforations of the metal plates 22.

The upper plates may be rovided anges 24 to Vencompass the e ges of the insulating plates Y23 and both plates may be secured together in spaced relation by the screws, bolts or other fastenings 25. The slabs so formed in any appropriate number, such for instance as the three slabs shown, are supported. upon the Bange orshoulder 26 carried at the margin. of the rectangular or other opening provided in the stove casing top to receive.V the same. A

.Above and to the rear of the oven, the stove is provided with a damper box having an offset wall 27, shown in Figure 5, formed with ports 28 behind which slides the damper 29 having the slots 30 to register with the ports 28. The damper plate is appropriately guided and is swivelly coupled by a link 31 to a sleeve 32 fixed onl the rod 33,1which connects with the levers 34 and 35 extending to and coupledwith the pivoted damper valves 36 and 37. These damper Valves control the Vports 38 and 39 at opposite ends of the' stove heating top.

In operation, all air fdraft necessary for the operation Vof the stove must pass through vthe perforations inthe top plates 22 and 23.

As this air draft must make contact with the top surface, edge area of perforations, and bottom surface kof both the metal and insulating material, a maximum cooling effect is thus'obtained without detract'ing from stove operation. After the air has passed through the perforated top, it comes in contact with the heated cooking top 19 and is thus reheated before being passed through the ebox 40 by way7 of the ,draft passage 15 and opening 14. This feature of preheating the air draft insures more perfect combustion of fuel and a subsequent savlng of approximately fifty per cent. This'feature also uses `the heat that commonly is radiated into the kitchen for raising the temperature in the stove.

The damper arrangement permits the maximum air draft through thel top at all stages of operation of the stove, thus insuring the top remaining at a very low temperature. The top is of further use in drawing int-o the stove cooking fumes which, kin a large number of cases lare objectionable and which customarily are removed from the kitchen by hoods located over the stove and discharging into the outer atmosphere.

The perforated top sections may be removed either wholly or in any of the units required for the purpose of giving access to the cooking top for the placing of cooking vessels thereon, and also for heating of the kitchen during cold weather, should this be desired.

As shown in Figure 4 the shaft of the Vdamper 39 is extended and provided with a Vrequires all air drar handle 41 at the front of the stove for convenient operation of all of the dampers.

The dampers 36 and 37 are assembled' in the stove aty 9()O angles to each other, as shownin Figure 2. When the damper 36 is open, both the dampers 37 and 29 are closed. This is the position shown iirFigure 2. f This perforated top to comein contact withthe cooking top 19 and to pass along the chainber 16 to a down-take passage 15, through A the fire-box 40 along upper stove flue 42 above the oven and down throughl the down-take stove flue 43 at the far side of the oven and into the lower stove flue 44 below the oven.

This lower stove flue connects, as shown in Figure 5, through port 45 with the smoke or chimney pipe 46. This smoke or chimney pipe is also connected by a branch '47 with the :chamber 48 behind lthe sliding damper 29. This operation'permits oven temperature to-be brought to proper point at the Sametime cooking top 19 is being raised to other `two dampers are open.

i cooking temperature.

When damper36 .is in closed position the Air draft then Hows to the right (viewing Figure 2), across the cooking top 19, passing through port 39 and to the left'through top flue 42. This air being preheated from passing across the cooking top is mixed with heavy gases discharged from the fire-box and causes further combustion and additional generation of heat within the stove. The draft then escapes through the sliding damper 29 into the smoke pipe. kAlso when the dampers are in this position, all draft through the lire-box 40 is stopped, and with `air draft passing through 'top flue 42 and escaping through damper 29,

t passing through the Lviaaes an instant control is had on stove temperatures both for the cooking top and oven. These damper-s maintain relative positions to cach other at all stages of operation from full direct draft to full check and escape, and at the same time permit full draft through the perforated top sections regardless of what the position of the dampersmight be. This amountof draft for cooling top is, therefore, oniyv determined by the height of flue to which smoke pipe is connected. Vhenever flue is of sufficient height for satisfactory operation of stove, it will be satisfactory for top cooling.

Referring particularly to Figure a new type of fire, ash and soot door is so constructed to have in its interior a concave receiving portion 50 and provided with a hinge which enables the door to be removed from the stove. This hinge consists of a shank 51 affixed to the door structure, preferably atthe lower portion thereof and extendi'nodiagonally away from the plane of the door and having an up-turned terminal end 52 for interlocking with the stove casing in which is provided an opening 53 for the hinge of greater thickness than the hinge to permit of the requisite play. Y

Figure 7 shows the open 'position of the door,v showing its use as a catch-all when Jcoaling, or when removing ashes and soot.

shown, which may be used instead of the previously described top, wheref cooking and warming dishes is desired. In this canopy top, designates a rear wall, 61 and 62 the end wallsy and 63 the top or roof; A front wall is also provided having the doors 64 and 65. The doors 64, two or more 'in number, communicate with the warmer compartment in the upper portion of the canopy top above the horizontal partition 66. The rear wall 60'is provided with numerous perforations 67, as shown in Figure 9. The bottom of the device is open, as shown in Figure 10 to Vreceiveheat from the stove.

In use the top previously Vdescribed is removed, and the canopy top put in place, as shown in Figure 10. All of the air necessary for the operation of the stove is received through theperforations 67. Access is had to either compartment through the doors 64 and 65, cooking vessels being Vplaced in the lower compartment and vessels to be heated .in the upper compartment. When the vessels are introduced the doors are closed, which prohibits the escaping of the hot air into the kitchen. The operation of the stove with this attachment is as previously described.

It is obvious that various changes and modifications may be made in the details of construction and design of the above specifically described embodiment of this invention without departing from the spirit thereof, such changes and modifications being restricted only by the scope of the following claims. A

llVhat isclaimed is 1. In a stove, a cooking top, a draft-inlet stove top above the cooking top, and da-mpers connected for conjoint operation for circulating the draft to the flue either through the fire-box and about the stove oven or directly to the ilue without passing through the lirebox or about the oven.

2. In a stove, an oven, a cooking top above the oven, a draft inlet above the top, andY conjointly-controlled dampers at opposite portions of the inlet for circulating the draft to the flue either through the fire-box and about the stove oven or. without passingl through the lire-box.

3. In a stove, an oven having flues there-v about, a fire-box, an air-preheating chamber, a down-take connecting with the fire-box and boX and by-pass leading to the chimney, andv a common operating means connected to all the dampers.

4. In a stove, an oven havin ues thereabout, a lire-box, an air-preheating chamber,

a down-take connecting with the fire-.box and chamber, a by-pass connectin with oven flues at opposite side from the freox, alternately opening and closing dampers for the downtake and by-pass, a damper between the rebox and by-pass leading to the chimney, and a common operating means connecting to all the dampers and so coupled as to close the by-pass and last-mentioned damper when the down-take damper is open.

5. In a stove having an oven with surrounding flues, and a fire-box, a cookin top above the oven, a perforated insulate sectional removable stove top spaced above the cooking top, a down-take from the top the JAMES T. Frrz GERALD. 

